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-rw-r--r--lib/avp.c540
1 files changed, 540 insertions, 0 deletions
diff --git a/lib/avp.c b/lib/avp.c
new file mode 100644
index 0000000..c60d9ef
--- /dev/null
+++ b/lib/avp.c
@@ -0,0 +1,540 @@
+/* Copyright 2011 JANET(UK). All rights reserved.
+ See LICENSE for licensing information. */
+
+#if defined HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+
+#include <radsec/radsec.h>
+#include <radius/client.h>
+
+#define RS_ERR(err) ((err) < 0 ? -err : RSE_OK)
+
+void
+rs_avp_free (rs_avp **vps)
+{
+ nr_vp_free (vps);
+}
+
+size_t
+rs_avp_length (rs_const_avp *vp)
+{
+ if (vp == NULL)
+ return 0;
+
+ return vp->length;
+}
+
+rs_attr_type_t
+rs_avp_typeof (rs_const_avp *vp)
+{
+ if (vp == NULL)
+ return RS_TYPE_INVALID;
+
+ return vp->da->type;
+}
+
+void
+rs_avp_attrid (rs_const_avp *vp,
+ unsigned int *attr,
+ unsigned int *vendor)
+{
+ assert (vp != NULL);
+
+ *attr = vp->da->attr;
+ *vendor = vp->da->vendor;
+}
+
+const char *
+rs_avp_name (rs_const_avp *vp)
+{
+ return (vp != NULL) ? vp->da->name : NULL;
+}
+
+void
+rs_avp_append (rs_avp **head, rs_avp *tail)
+{
+ nr_vps_append (head, tail);
+}
+
+rs_avp *
+rs_avp_find (rs_avp *vp, unsigned int attr, unsigned int vendor)
+{
+ if (vp == NULL)
+ return NULL;
+
+ return nr_vps_find (vp, attr, vendor);
+}
+
+rs_const_avp *
+rs_avp_find_const (rs_const_avp *vp,
+ unsigned int attr, unsigned int vendor)
+{
+ if (vp == NULL)
+ return NULL;
+
+ return nr_vps_find ((rs_avp *)vp, attr, vendor);
+}
+
+rs_avp *
+rs_avp_alloc (unsigned int attr, unsigned int vendor)
+{
+ const DICT_ATTR *da;
+ VALUE_PAIR *vp;
+
+ da = nr_dict_attr_byvalue (attr, vendor);
+ if (da == NULL) {
+ vp = nr_vp_alloc_raw (attr, vendor);
+ } else {
+ vp = nr_vp_alloc (da);
+ }
+
+ if (vp == NULL)
+ return NULL;
+
+ return vp;
+}
+
+rs_avp *
+rs_avp_dup (rs_const_avp *vp)
+{
+ rs_avp *vp2;
+
+ if (vp->da->flags.unknown)
+ vp2 = nr_vp_alloc_raw (vp->da->attr, vp->da->vendor);
+ else
+ vp2 = nr_vp_alloc (vp->da);
+ if (vp2 == NULL)
+ return NULL;
+
+ vp2->length = vp->length;
+ vp2->tag = vp->tag;
+ vp2->next = NULL;
+
+#ifdef RS_TYPE_TLV
+ if (rs_avp_is_tlv (vp)) {
+ vp2->vp_tlv = malloc (vp->length);
+ if (vp2->vp_tlv == NULL) {
+ rs_avp_free (vp2);
+ return NULL;
+ }
+ memcpy (vp2->vp_tlv, vp->vp_tlv, vp->length);
+ return vp2;
+ }
+#endif
+
+ memcpy (vp2->vp_strvalue, vp->vp_strvalue, vp->length);
+ if (rs_avp_is_string (vp))
+ vp2->vp_strvalue[vp->length] = '\0';
+
+ return vp2;
+}
+
+rs_avp *
+rs_avp_next (rs_avp *vp)
+{
+ return (vp != NULL) ? vp->next : NULL;
+}
+
+rs_const_avp *
+rs_avp_next_const (rs_const_avp *vp)
+{
+ return (vp != NULL) ? vp->next : NULL;
+}
+
+int
+rs_avp_delete (rs_avp **first,
+ unsigned int attr, unsigned int vendor)
+{
+ int found = 0;
+ rs_avp **p;
+
+ for (p = first; *p != NULL; p++) {
+ if ((*p)->da->attr == attr &&
+ (*p)->da->vendor == vendor) {
+ rs_avp *next = (*p)->next;
+
+ (*p)->next = NULL;
+ rs_avp_free (p);
+
+ *p = next;
+ found++;
+ }
+ }
+
+ return found ? RSE_OK : RSE_ATTR_UNKNOWN;
+}
+
+const char *
+rs_avp_string_value (rs_const_avp *vp)
+{
+ if (!rs_avp_is_string (vp))
+ return NULL;
+
+ return vp->vp_strvalue;
+}
+
+int
+rs_avp_string_set (rs_avp *vp, const char *str)
+{
+ int err;
+
+ if (vp == NULL)
+ return RSE_INVAL;
+ if (!rs_avp_is_string (vp))
+ return RSE_ATTR_INVALID;
+
+ err = nr_vp_set_data (vp, str, strlen (str));
+ return RS_ERR(err);
+}
+
+uint32_t
+rs_avp_integer_value (rs_const_avp *vp)
+{
+ if (!rs_avp_is_integer (vp))
+ return 0;
+ return vp->vp_integer;
+}
+
+int
+rs_avp_integer_set (rs_avp *vp, uint32_t val)
+{
+ int err;
+
+ if (vp == NULL)
+ return RSE_INVAL;
+ if (!rs_avp_is_integer (vp))
+ return RSE_ATTR_INVALID;
+
+ err = nr_vp_set_data (vp, &val, sizeof (val));
+ return RS_ERR(err);
+}
+
+uint32_t
+rs_avp_ipaddr_value (rs_const_avp *vp)
+{
+ if (!rs_avp_is_ipaddr (vp))
+ return 0;
+ return vp->vp_ipaddr;
+}
+
+int
+rs_avp_ipaddr_set (rs_avp *vp, struct in_addr in)
+{
+ int err;
+
+ if (vp == NULL)
+ return RSE_INVAL;
+ if (!rs_avp_is_ipaddr (vp))
+ return RSE_ATTR_INVALID;
+
+ err = nr_vp_set_data (vp, &in, sizeof (in));
+ return RS_ERR(err);
+}
+
+time_t
+rs_avp_date_value (rs_const_avp *vp)
+{
+ if (!rs_avp_is_date (vp))
+ return 0;
+ return vp->vp_date;
+}
+
+int
+rs_avp_date_set (rs_avp *vp, time_t date)
+{
+ uint32_t date32;
+ int err;
+
+ if (vp == NULL)
+ return RSE_INVAL;
+ if (!rs_avp_is_date (vp))
+ return RSE_ATTR_INVALID;
+ if (date > 0xFFFFFFFF)
+ return RSE_ATTR_INVALID;
+
+ date32 = (uint32_t)date;
+ err = nr_vp_set_data (vp, &date32, sizeof (date32));
+
+ return RS_ERR(err);
+}
+
+const unsigned char *
+rs_avp_octets_value_const_ptr (rs_const_avp *vp)
+{
+ return rs_avp_octets_value_ptr ((rs_avp *)vp);
+}
+
+unsigned char *
+rs_avp_octets_value_ptr (rs_avp *vp)
+{
+ if (vp == NULL)
+ return NULL;
+
+#ifdef RS_TYPE_TLV
+ if (rs_avp_is_tlv (vp))
+ return vp->vp_tlv;
+#endif
+
+ return vp->vp_octets;
+}
+
+int
+rs_avp_octets_value_byref (rs_avp *vp,
+ unsigned char **p,
+ size_t *len)
+{
+ if (vp == NULL)
+ return RSE_INVAL;
+
+ *len = vp->length;
+ *p = (unsigned char *)rs_avp_octets_value_ptr (vp);
+
+ return RSE_OK;
+}
+
+int
+rs_avp_octets_value (rs_const_avp *vp,
+ unsigned char *buf,
+ size_t *len)
+{
+ if (vp == NULL)
+ return RSE_INVAL;
+
+ if (vp->length > *len) {
+ *len = vp->length;
+ return RSE_ATTR_TOO_SMALL;
+ }
+
+ *len = vp->length;
+
+#ifdef RS_TYPE_TLV
+ if (rs_avp_is_tlv (vp))
+ memcpy (buf, vp->vp_tlv, vp->length);
+ else
+#endif
+ memcpy (buf, vp->vp_octets, vp->length);
+
+ return RSE_OK;
+}
+
+int
+rs_avp_fragmented_value (rs_const_avp *vps,
+ unsigned char *buf,
+ size_t *len)
+{
+ size_t total_len = 0;
+ unsigned char *p;
+ rs_const_avp *vp;
+
+ if (vps == NULL)
+ return RSE_INVAL;
+
+ if (!rs_avp_is_octets (vps) &&
+ !rs_avp_is_string (vps))
+ return RSE_ATTR_INVALID;
+
+ for (vp = vps;
+ vp != NULL;
+ vp = rs_avp_find_const (vp->next, vp->da->attr, vp->da->vendor))
+ total_len += vp->length;
+
+ if (*len < total_len) {
+ *len = total_len;
+ return RSE_ATTR_TOO_SMALL;
+ }
+
+ for (vp = vps, p = buf;
+ vp != NULL;
+ vp = rs_avp_find_const (vp->next, vp->da->attr, vp->da->vendor)) {
+ memcpy (p, vp->vp_octets, vp->length);
+ p += vp->length;
+ }
+
+ *len = total_len;
+
+ return RSE_OK;
+}
+
+int
+rs_avp_octets_set (rs_avp *vp,
+ const unsigned char *buf,
+ size_t len)
+{
+ int err;
+
+ if (!rs_avp_is_octets (vp))
+ return RSE_ATTR_INVALID;
+
+ err = nr_vp_set_data (vp, buf, len);
+
+ return RS_ERR(err);
+}
+
+int
+rs_avp_ifid_value (rs_const_avp *vp, uint8_t val[8])
+{
+ if (!rs_avp_is_ifid (vp))
+ return RSE_ATTR_INVALID;
+
+ memcpy (val, vp->vp_ifid, 8);
+
+ return RSE_OK;
+}
+
+int
+rs_avp_ifid_set (rs_avp *vp, const uint8_t val[8])
+{
+ int err;
+
+ if (!rs_avp_is_ifid (vp))
+ return RSE_ATTR_INVALID;
+
+ err = nr_vp_set_data (vp, val, 8);
+ return RS_ERR(err);
+}
+
+uint8_t
+rs_avp_byte_value (rs_const_avp *vp)
+{
+ if (!rs_avp_is_byte (vp))
+ return 0;
+ return vp->vp_integer;
+}
+
+int
+rs_avp_byte_set (rs_avp *vp, uint8_t val)
+{
+ int err;
+
+ if (!rs_avp_is_byte (vp))
+ return RSE_ATTR_INVALID;
+
+ err = nr_vp_set_data (vp, &val, sizeof (val));
+ return RS_ERR(err);
+}
+
+uint16_t
+rs_avp_short_value (rs_const_avp *vp)
+{
+ if (!rs_avp_is_short (vp))
+ return 0;
+ return vp->vp_integer;
+}
+
+int
+rs_avp_short_set (rs_avp *vp, uint16_t val)
+{
+ int err;
+
+ if (!rs_avp_is_short (vp))
+ return RSE_ATTR_INVALID;
+
+ err = nr_vp_set_data (vp, &val, sizeof (val));
+ return RS_ERR(err);
+}
+
+int
+rs_attr_find (const char *name,
+ unsigned int *attr,
+ unsigned int *vendor)
+{
+ const DICT_ATTR *da;
+
+ da = nr_dict_attr_byname (name);
+ if (da == NULL)
+ return RSE_ATTR_UNKNOWN;
+
+ *attr = da->attr;
+ *vendor = da->vendor;
+
+ return RSE_OK;
+}
+
+int
+rs_attr_display_name (unsigned int attr,
+ unsigned int vendor,
+ char *buffer,
+ size_t bufsize,
+ int canonical)
+{
+ const DICT_ATTR *da = NULL;
+ DICT_ATTR da2;
+ int err;
+
+ if (!canonical) {
+ da = nr_dict_attr_byvalue (attr, vendor);
+ }
+ if (da == NULL) {
+ err = nr_dict_attr_2struct(&da2, attr, vendor,
+ buffer, bufsize);
+ if (err < 0)
+ return -err;
+ } else {
+ snprintf(buffer, bufsize, "%s", da->name);
+ }
+
+ return RSE_OK;
+}
+
+int
+rs_attr_parse_name (const char *name,
+ unsigned int *attr,
+ unsigned int *vendor)
+{
+ const DICT_ATTR *da;
+
+ if (strncmp(name, "Attr-", 5) == 0) {
+ char *s = (char *)&name[5];
+ unsigned int tmp;
+
+ tmp = strtoul(s, &s, 10);
+ if (*s == '.') {
+ s++;
+
+ switch (tmp) {
+ case PW_VENDOR_SPECIFIC:
+ *vendor = strtoul(s, &s, 10);
+ if (*s != '.')
+ return RSE_ATTR_BAD_NAME;
+
+ s++;
+
+ *attr = strtoul(s, &s, 10);
+ if (*s != '\0')
+ return RSE_ATTR_BAD_NAME;
+
+ break;
+ default:
+ return RSE_ATTR_BAD_NAME;
+ }
+ } else {
+ *attr = tmp;
+ *vendor = 0;
+ }
+ } else {
+ da = nr_dict_attr_byname (name);
+ if (da == NULL)
+ return RSE_ATTR_UNKNOWN;
+
+ *attr = da->attr;
+ *vendor = da->vendor;
+ }
+
+ return RSE_OK;
+}
+
+size_t
+rs_avp_display_value (rs_const_avp *vp,
+ char *buffer,
+ size_t buflen)
+{
+ return nr_vp_snprintf_value (buffer, buflen, vp);
+}
+
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